A half-marathon plan can call itself beginner-friendly and still ask for a four-mile run in week one. If you are just starting to run, you need time to build up to that distance.
You can work toward 13.1 miles from short run-walk sessions. This 24-week couch to half marathon plan builds from those sessions to longer outings and shows when to repeat a week or move the race date. Plan on three outings a week, with recovery days between them.
Can You Go From Couch to Half Marathon?
For many people, yes. Your starting fitness determines how long you need. A 12-week plan may work if you already run three miles several times a week. If you are starting from zero, build a running habit before building distance. Treat these 24 weeks as a guide, and allow more time if you need to repeat weeks.
| Where you are now | Where to start | Next checkpoint |
|---|---|---|
| You cannot yet jog for five minutes comfortably | Start at week 1 with three short run-walk outings a week | Work toward 30 minutes of easy running or a comfortable run-walk equivalent |
| You can run about 30 minutes, but a long run feels new | Start with the bridge at week 10 | Build a comfortable three- to four-mile outing |
| You already run three to four miles regularly | Consider starting at week 13 or using a beginner plan matched to your current training | You may not need the full 24 weeks |
This distinction matters. Hal Higdon's 12-week Novice 1 plan begins with three- and four-mile runs and assumes you can already run three miles several times a week. Its starting point is different from a literal couch start.
If you have a condition that affects exercise, are returning from injury, or have symptoms such as chest pain or dizziness with activity, ask a clinician how to start. If a 30-minute walk is difficult right now, build up your walking before trying week 1.
The 24-Week Couch to Half Marathon Plan
The plan has three parts. The first nine weeks build your run-walk fitness. The next three take you from a 30-minute outing to a three- or four-mile long outing. The final 12 build distance, then reduce it before race day. Repeat a week whenever you need more time. Choose a race date that leaves room for those repeats.
Weeks 1-9: Learn to Run and Walk
Use the free NHS Couch to 5K schedule for the exact three sessions each week. It begins with short running intervals separated by walks and places a rest day between runs. By week nine, its goal is three 30-minute runs. You do not need to cover five kilometers in 30 minutes to move on.
For your first outing, the NHS session starts with a five-minute walk, includes eight one-minute runs with seven 90-second walks between them, then ends with a five-minute walk. Run at a pace that lets you talk. If a week feels too demanding, repeat it. Walking breaks are part of the workout.
| Weeks | Main task | Move on when... |
|---|---|---|
| 1-3 | Learn the run-walk rhythm on three nonconsecutive days | You can finish the sessions and recover before the next one |
| 4-6 | Let the running intervals lengthen while keeping the effort easy | Longer intervals feel controlled rather than like sprints |
| 7-9 | Build toward a 30-minute easy outing | You can complete the time, with planned walks if needed, and feel ready to train again after rest |
Weeks 10-12: Bridge to Longer Outings
Keep three outings a week. On two days, run or run-walk for 25 to 35 minutes at an easy effort. On the third, gradually extend your outing toward the distances below. Walk breaks are fine. If week 10's distance is a big jump from your 30-minute session, extend the outing by time instead and take extra weeks to reach the mileage target.
| Week | Longer outing | Other two outings |
|---|---|---|
| 10 | About 2.5-3 miles | 25-30 minutes each |
| 11 | About 3 miles | 25-35 minutes each |
| 12 | About 3.5-4 miles | 30-35 minutes each |
These distances are examples, not deadlines. Stay here longer if a distance feels like too big a jump or leaves you worn down for days. Before week 13, aim to cover about three to four miles at an easy effort and recover in time for your next scheduled outing.
Weeks 13-24: Build Distance, Then Ease Back
Keep the same pattern of two easy weekday outings and one longer weekend outing. The longer sessions are shown in miles because US races use miles. You can alternate running and walking throughout them. Treat each distance as a target you can repeat or move later if you need more recovery.
| Week | Longer outing | Focus |
|---|---|---|
| 13 | 4 miles | Settle into the three-outing rhythm |
| 14 | 4 miles | Repeat the distance before adding more |
| 15 | 5 miles | Keep the effort conversational |
| 16 | 5 miles | Practice the same run-walk pattern |
| 17 | 6 miles | Start testing fuel on a longer outing |
| 18 | 6 miles | Hold steady and notice recovery |
| 19 | 7 miles | Keep the weekday outings easy |
| 20 | 6 miles | Shorter week to absorb the work |
| 21 | 8 miles | Practice race shoes, fuel, and walking breaks |
| 22 | 9-10 miles | Longest practice outing; stay controlled |
| 23 | 5-6 miles | Ease back; keep short, easy outings |
| 24 | 13.1-mile race | Start slowly and use the practiced plan |
You do not need to cover 13.1 miles in training. Higdon's novice plan peaks at 10 miles before the race, though that distance will not suit everyone. If the longest outings take several hours or leave you unusually worn down, shorten them and allow more time to build. If you cannot reach about eight miles and recover before race week, consider a later race or a shorter distance.
How to Set Up Each Training Week
From week 10 onward, put at least one nonrunning day between the three run or run-walk outings. Move days around to fit your life, while preserving recovery after the longer outing. For weeks 1 through 9, follow the shorter sessions in the NHS schedule.
| Day | Example |
|---|---|
| Monday | Rest or gentle walking |
| Tuesday | Easy run or run-walk, 25-40 minutes |
| Wednesday | Optional strength work or easy walking |
| Thursday | Easy run or run-walk, 25-40 minutes |
| Friday | Rest |
| Saturday | Longer outing from the plan |
| Sunday | Rest or gentle walking |
The weekday duration can stay nearer 25 minutes in the bridge weeks and grow toward 40 minutes if you are recovering well. Begin and end each outing with a few minutes of easy walking, as in the NHS plan. One or two short strength sessions can fit on nonrunning days, but they do not replace food, sleep, or rest. You do not need speed workouts for a first finish goal. For an easy outing, use the talk test: you should be able to talk, even if you could not sing.
A run-walk option from week 10 onward: jog easily for two minutes, then walk for one minute. Repeat for the session's planned time or distance, counting the walks as part of the outing. Shorten the running intervals if needed. You can keep planned walking breaks through race day if you can meet the event's cutoff.
When to Repeat a Week, Back Off, or Change the Race
A schedule is useful only if you can adjust it. There is no proven weekly mileage percentage that guarantees you will avoid injury. A systematic review of running training parameters found that the popular 10% rule is not justified as a universal limit. Keep increases manageable and watch how you respond instead of chasing a number.
| What happens | What to do | When to resume the plan |
|---|---|---|
| You feel generally tired or mildly sore, and it settles with rest | Repeat the week or shorten the next outing | When the usual easy effort feels manageable again |
| You miss one run | Continue with the next planned easy run; do not stack missed miles into one day | Keep the next long outing at a distance you have handled recently |
| You miss a week or more | Return with shorter, easier outings | Rebuild toward your last comfortable week before progressing |
| Pain changes your stride, is sharp or focal, or persists | Stop the run and seek advice from a qualified clinician | Follow individualized advice before increasing training |
| The race is near and your long outings are still far below the plan | Look for a later event or an approved shorter race | Choose a date that gives you room to rebuild |
NHS running-injury guidance advises stopping for running pain and getting it checked if it does not settle. Chest pain, faintness, or severe breathlessness during exercise call for prompt medical help. Do not use a table to diagnose a symptom.
Fuel, Gear, and Race-Day Planning
Have a familiar meal or snack before longer outings. As they stretch beyond about 90 minutes, practice eating during them. A sports nutrition review describes 30-60 grams of carbohydrate per hour as a common range for prolonged endurance exercise. Check the carbohydrate amount on foods or drinks you plan to carry, start at the lower end, and practice taking small amounts regularly. Adjust for your stomach and expected race time. Eat enough on ordinary training days, too; regular underfueling makes recovery harder.
Drink according to thirst, weather, and the length of your outing. Avoid forcing large amounts of water. If you expect a long or hot race, practice a hydration approach in similar conditions and seek personal advice if you have a medical condition that affects fluids or electrolytes.
Use shoes and socks that have already worked on long outings. Our running shoe fit guide can help you check for slipping heels or cramped toes. A phone timer is enough for run-walk intervals; a watch is optional.
Before registering, check the race's current course cutoff, whether it permits walkers, and whether aid stations remain open for slower participants. Use your practiced run-walk pace in a pace calculator to estimate a finish time, then allow room for water stops. Cutoffs can change, so check the event's own current rules.
Race-week checklist
- Confirm the start time, cutoff, route, aid stations, and weather.
- Set out familiar shoes, socks, clothing, and the fuel you practiced.
- Keep the last few outings short and easy. Do not try to make up missed long runs.
- Start at an effort you can control. Take planned walking breaks before you feel spent.
What to Do This Week
Pick the starting week that matches what you can do now. Put three nonconsecutive outings on your calendar. If you are beginning at week 1, open the NHS schedule and try its first session at an easy effort. Leave room to repeat weeks, and check how you feel before the next outing. Move the race date if you need more time to build.
Frequently asked questions
How long does it take to go from couch to half marathon?
This plan allows 24 weeks for someone starting with little or no running. Some people need more time, especially if they repeat weeks or take a break. Shorter half-marathon plans usually assume you already run several miles at a time.
Can I use run-walk intervals for the entire half marathon?
Yes, you can keep planned walking breaks through race day if the event permits them and your pace meets its cutoff. Practice the same interval pattern on longer training outings. There is no need to switch to nonstop running just because the race is near.
Do I need to finish a 5K race before training for a half marathon?
No, a 5K race is optional. Being able to complete about 30 minutes of easy running or run-walk training is a more useful checkpoint for this plan. A local 5K can still help you practice race-day logistics.
How many days a week should a new runner train?
Start with three run or run-walk outings on nonconsecutive days. Leave at least one day without running between them, and keep most efforts easy. Optional walking or strength work should not leave you too tired for the next outing.
What if I cannot finish a planned long run?
Stop when you need to, then repeat or shorten that training week. Consider whether you started too fast, had enough rest and food, or attempted too large a jump. If pain is sharp, changes your stride, or persists, get medical advice before resuming the build.
Do I need to run 13.1 miles before race day?
No. This example plan peaks at about nine to 10 miles before easing back for the race. If you cannot comfortably cover about eight miles and recover before race week, consider a later race.
What if I miss two weeks of training?
Return with shorter, easier outings instead of trying to make up missed miles. Once those feel manageable again, resume near your last comfortable training week. A later race date may be the better choice if the missed time falls near race day.
When should I stop running and get help?
Stop running for sharp or worsening pain or pain that changes your stride, and seek advice from a qualified clinician before increasing training. Chest pain, faintness, or severe breathlessness during exercise call for prompt medical help. A clinician can advise how to return if you have a condition that affects exercise.
I completed my first 10K on a dare. In a year, I ran a half-marathon. Another year later, I finished a marathon race. Today I run 4 marathons a year and a half-marathon every week. I learned everything about running the hard way. So, I help runners achieve better results easier.